TY - JOUR
T1 - Electrocatalytic Investigation by Improving the Charge Kinetics between Carbon Electrodes and Dopamine Using Bio-Synthesized CuO Nanoparticles
AU - Rajendrachari, Shashanka
AU - Kudur Jayaprakash, Gururaj
AU - Pandith, Anup
AU - Karaoglanli, Abdullah Cahit
AU - Uzun, Orhan
N1 - Funding Information:
The authors gratefully acknowledge Bartin University Scientific Research Projects Unit, Turkey for providing financial support to conduct the research (Project number: 2019-FEN-A-006).
Funding Information:
Anup Pandith, thankful to International Ph.D. Program in Biomedical Engineering (IPBME), Taipei Medical University for providing financial assistance through the newly hired faculty Research project No.: TMU111-AE1-B10.
Publisher Copyright:
© 2022 by the authors.
PY - 2022/9
Y1 - 2022/9
N2 - We have successfully studied the charge transfer kinetics between carbon paste electrodes and dopamine using green synthesized rectangular monoclinic CuO nanoparticles (NPs) prepared by Alchemilla vulgaris leaves with the one-pot green synthesis method. The scanning electron microscopy (SEM) results confirmed the monoclinic structure with a particle size of around 85 nm. The investigation of thermal properties was carried out by thermogravimetric (TG) and differential thermal analysis (DTA). We also studied the electrochemical response of green synthesized CuO nanoparticles to detect Dopamine (DA) using cyclic voltammetry, which was proven to be an excellent electrocatalyst for the electro-oxidation of DA. The fabricated CuO nanoparticle modified carbon paste electrode (CMCPE) depicts fantastic selectivity, robustness, and sensitivity in analyzing DA in clinical and pharmaceutical preparations. The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) orbitals of the DA were studied using positive and negative charges at the CuO modified carbon paste electrode interface. Frontier molecular orbitals of DA are plotted to understand electron transfer reactivity at the electrode interface.
AB - We have successfully studied the charge transfer kinetics between carbon paste electrodes and dopamine using green synthesized rectangular monoclinic CuO nanoparticles (NPs) prepared by Alchemilla vulgaris leaves with the one-pot green synthesis method. The scanning electron microscopy (SEM) results confirmed the monoclinic structure with a particle size of around 85 nm. The investigation of thermal properties was carried out by thermogravimetric (TG) and differential thermal analysis (DTA). We also studied the electrochemical response of green synthesized CuO nanoparticles to detect Dopamine (DA) using cyclic voltammetry, which was proven to be an excellent electrocatalyst for the electro-oxidation of DA. The fabricated CuO nanoparticle modified carbon paste electrode (CMCPE) depicts fantastic selectivity, robustness, and sensitivity in analyzing DA in clinical and pharmaceutical preparations. The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) orbitals of the DA were studied using positive and negative charges at the CuO modified carbon paste electrode interface. Frontier molecular orbitals of DA are plotted to understand electron transfer reactivity at the electrode interface.
KW - charge kinetics
KW - CuO nanoparticles
KW - cyclic voltammetry
KW - dopamine sensor
KW - frontier molecular orbitals
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U2 - 10.3390/catal12090994
DO - 10.3390/catal12090994
M3 - Article
AN - SCOPUS:85138637711
SN - 2073-4344
VL - 12
JO - Catalysts
JF - Catalysts
IS - 9
M1 - 994
ER -